<reference> 

Type:

  string

PARENT ELEMENTS

Parent

Type

AVP Definition <avp> avpDefinitionTransparentType
AVP Presence, with Definition <avp_def> avpDefinitionPresenceType
AVP Presence, with Definition <avp_def> avpDefinitionPresenceType
AVP Definition <avp> avpDefinitionType
IE Definition <ie> s1IeDefinitionType
IE Definition <ie> MapIeDefinitionType
IE Definition <ie> m3IeDefinitionType
IE Definition <ie> ngapIeDefinitionType